CN214352676U - Plastic pipe cutting machine - Google Patents

Abstract

The utility model provides a plastic tubing cutting machine belongs to plastic tubing cutting technical field, include: a fixing seat provided with an eccentric wheel for controlling the chamfering depth; a drive device; the transmission mechanism is in linkage connection with the driving device; the cutting mechanism comprises a main shaft, a main cutting knife used for cutting the plastic pipe and a chamfering knife used for chamfering the plastic pipe, the main shaft is arranged on the fixed seat and is in linkage connection with the transmission mechanism, and the main cutting knife and the chamfering knife are all sleeved on the main shaft. The utility model has the advantages that: the chamfering depth can be controlled when the plastic pipe is chamfered, and a fracture of the plastic pipe is effectively prevented from scratching workers.

Description

Plastic pipe cutting machine

Technical Field

The utility model belongs to the technical field of the plastic tubing cutting, a plastic tubing cutting machine is related to.

Background

The cutting processing of the common plastic pipe is completed by a cutting machine, and the existing plastic pipe cutting machine can only complete single cutting work, so the working efficiency is low. For example, a utility model patent that publication number is CN205735135U provides an efficient plastic tubing cutting machine, the on-line screen storage device comprises a base, the last fixed surface of base is connected with the backup pad, first spout has been seted up to one side of backup pad, the opposite side fixedly connected with motor board of backup pad, the first motor of top fixedly connected with of motor board, the first belt pulley of one end fixedly connected with of first motor, first belt pulley passes through belt and second belt pulley swing joint, the axle center department of second belt pulley and the one end fixed connection of threaded rod. This efficient plastic tubing cutting machine through the setting of first motor, threaded rod and slide, makes the second motor can slide, makes the cutting piece can slide the cutting, has reached efficient cutting, through the setting of supporting leg, pulley and concave piece, makes the slip that the second motor can be better to can once only cut the plastic tubing of majority.

The plastic pipe cutting machine can only complete a single process, and the production efficiency of the plastic pipe is not improved from the aspect of the process, so that cutting machines with cutting knives and chamfering knives are available on the market, and the cutting machines can complete cutting work and chamfering work simultaneously by connecting the cutting knives and the chamfering knives to a main shaft simultaneously.

In summary, some existing technical solutions can complete the cutting operation and the chamfering operation at the same time, thereby improving the cutting efficiency, but still have the problem that the chamfering depth cannot be controlled, and there is a large improvement space in this respect.

Disclosure of Invention

The utility model aims at providing a plastic tubing cutting machine to the above-mentioned problem that prior art exists.

The purpose of the utility model can be realized by the following technical proposal: a plastic pipe cutting machine comprising: a fixing seat provided with an eccentric wheel for controlling the chamfering depth; a drive device; the transmission mechanism is in linkage connection with the driving device; the cutting mechanism comprises a main shaft, a main cutting knife used for cutting the plastic pipe and a chamfering knife used for chamfering the plastic pipe, the main shaft is arranged on the fixed seat and is in linkage connection with the transmission mechanism, and the main cutting knife and the chamfering knife are all sleeved on the main shaft.

Preferably, the main cutter comprises a blade, and the blade is formed with a cutting bevel.

Preferably, the chamfer cutter is formed with a chamfer inclined plane.

Preferably, the fixing seat is provided with a dustproof ring, and the dustproof ring seals a gap between the main shaft and the fixing seat.

Preferably, the cutting mechanism further comprises a limiting block, the main shaft is sleeved with the limiting block, and the limiting block is in abutting connection with the main cutting knife.

Preferably, the transmission mechanism includes a first pulley, a second pulley and a transmission belt, the first pulley and the second pulley are linked through the transmission belt, the first pulley is connected with the driving device, and the second pulley is connected with the main shaft.

Compared with the prior art, the beneficial effects of the utility model are that:

1. because the point on the outer diameter of the eccentric wheel is different from the axis of the main shaft, when the plastic pipe is chamfered, the part of the plastic pipe, which is in contact connection with the eccentric wheel, is changed by moving the plastic pipe, and the distance between the main shaft and the plastic pipe is further changed, so that different chamfering depths can be limited, and meanwhile, the chamfered plastic pipe has no fracture, and is safer for workers.

2. The main cutting knife is formed with the cutting inclined plane, consequently at the actual cutting in-process, produced smear metal is the slice, and the slice smear metal is consequently difficult for the departure heavier, avoids causing the injury to the staff to the slice smear metal is great, also clears up more easily.

3. Set up the stability that can guarantee main cutting knife near main cutting knife's stopper, prevent that main cutting knife from leading to the fact the injury to the staff owing to unexpected main shaft that breaks away from or even departure, alleviate the vibration range of main cutting knife simultaneously to a certain extent, loss when reducing main cutting knife cutting plastic tubing.

Drawings

Fig. 1 is a schematic structural diagram of the cutting mechanism of the present invention.

Fig. 2 is an enlarged schematic view of a portion a shown in fig. 1.

Fig. 3 is a schematic structural diagram of the cutting machine of the present invention.

Fig. 4 is a rear view of the cutting machine of the present invention.

Fig. 5 is a plan view of the cutting machine of the present invention.

In the figure, 100, a fixed seat; 110. an eccentric wheel; 120. a dust ring; 200. a drive device; 300. a transmission mechanism; 310. a first pulley; 320. a second pulley; 330. a transmission belt; 400. a cutting mechanism; 410. a main shaft; 420. a main cutter; 421. a blade; 421a, cutting inclined plane; 430. chamfering cutter; 331. chamfering the inclined plane; 440. a limiting block; 500. a housing.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, 3, 4, and 5, a plastic pipe cutting machine includes:

a holder 100 provided with an eccentric 110 for controlling the chamfering depth, the holder 100 being actually a mounting holder for mounting the cutting mechanism 400;

the driving device 200, the driving device 200 can be a motor, a hydraulic cylinder or an air cylinder, as long as it can play a driving role;

the transmission mechanism 300 is linked with the driving device 200, and the transmission mechanism 300 can be a gear transmission mechanism 300 or a belt transmission mechanism 300 as long as the transmission function can be achieved;

the cutting mechanism 400 comprises a main shaft 410, a main cutting knife 420, a chamfering knife 430 and an eccentric wheel 110, wherein the main shaft 410 is arranged on the fixed seat 100 and is in linkage connection with the transmission mechanism 300, the main shaft 410 is a stepped shaft and used for installing other parts, the main cutting knife 420 and the chamfering knife 430 are both sleeved on the main shaft 410, the main cutting knife 420 is a saw blade, a hard alloy saw blade can be preferably adopted and used for cutting a plastic pipe, and the chamfering knife 430 is a cone frustum and used for chamfering the plastic pipe.

Preferably, a bearing is disposed between the main shaft 410 and the fixing base 100, and the bearing mainly plays a role of reducing friction (not shown in the bearing drawing). The bearing may preferably be an angular contact ball bearing, which has good rigidity and high rotation speed and can bear bidirectional axial load, and the cutting mechanism 400 has axial main acting force on the bearing, so the angular contact ball bearing is better.

Structurally, the fixing base 100 can limit the movement of the main shaft 410, so as to prevent the main shaft 410 from generating other movements except self-rotation, and the bearing arranged between the main shaft 410 and the fixing base 100 can ensure that the main shaft 410 moves at high speed and simultaneously reduce the friction between the main shaft 410 and the fixing base 100, thereby prolonging the service life of the main shaft 410 and reducing the influence of the rotation of the main shaft 410 on the whole cutting machine;

the housing 500, the fixing base 100 is connected to the housing 500, the driving device 200 is installed in the housing 500, and the housing 500 is mainly configured to protect the driving device 200 from being damaged by external force.

It should be particularly noted that, in the prior art, most of the cutting machines can only complete a single cutting process, and even the cutting mechanism 400 including the main cutter 420 and the chamfer cutter 430 cannot control the chamfer depth, the cutting mechanism 400 in the above embodiment includes the eccentric wheel 110, the eccentric wheel 110 is sleeved on the fixing base 100, and the eccentric wheel 110 cannot rotate along with the fixing base 100 because the eccentric wheel 110 is fixedly connected with the fixing base 100.

In terms of working principle, since the point on the outer diameter of the eccentric wheel 110 is different from the axis of the main shaft 410, when chamfering the plastic pipe, the distance between the main shaft 410 and the plastic pipe can be further changed by moving the plastic pipe to change the part of the plastic pipe in interference connection with the eccentric wheel 110, thereby limiting different chamfering depths. Meanwhile, the chamfered plastic pipe has no fracture, so that the safety is higher for workers.

As shown in fig. 1, 2, 3 and 4, in addition to the above embodiments, the main cutting blade 420 includes a cutting edge 421, the cutting edge 421 has a cutting inclined surface 421a, the cross-sectional shape of the cutting edge 421 is substantially trapezoidal, specifically, the upper end of the cutting edge 421 is enlarged from small to large and the lower end of the cutting edge 421 is enlarged from large to small, and the contact surface of the cutting edge 421 and the plastic pipe is close to a side during the cutting process, so that the cutting inclined surface 421a can form chip-shaped chips.

Preferably, in the prior art, the cutting blades mostly adopt the right-angled cutting edge 421, so the generated chips are mainly strip-shaped, the strip-shaped chips are lighter and are easy to fly out, the initial temperature of the chips is higher, and the chips are easy to hurt workers, while in the above embodiment, the main cutting blade 420 is formed with the cutting inclined plane 421a, so in the actual cutting process, the generated chips are in a sheet shape, the sheet-shaped chips are heavier and are difficult to fly out, and the sheet-shaped chips are larger and are easier to clean.

As shown in fig. 1, 3, 4, and 5, in addition to the above embodiment, the chamfer cutter 430 is formed with a chamfer slope 331. Preferably, the chamfer slope 331 formed on the chamfer cutter 430 is to form a corresponding slope chamfer to the plastic pipe.

As shown in fig. 1, 3, 4 and 5, in addition to the above-described embodiments,

the fixing base 100 is provided with the dust ring 120, the dust ring 120 seals the main shaft 410 and the gap between the fixing base 100, the number of the dust ring 120 is two, and the two dust rings are respectively connected with the two ends of the fixing base 100 so as to cover the fixing base 100 and the bearing between the fixing base 100 and the main shaft 410, the dust ring 120 can be a rubber dust ring 120 or a plastic dust ring 120, and only the sealing and dust-proof effects can be achieved.

Preferably, the dust ring 120 is provided to prevent flying chips and dust generated by cutting and chamfering from entering into the gaps among the fixing base 100, the bearing and the main shaft 410, causing deflection and deceleration of the main shaft 410, and also to prevent the main shaft 410 from being worn due to gap blockage, thereby reducing the service life of the cutting machine.

Further preferably, the dust ring 120 can be in interference connection with the eccentric wheel 110, so that flying chips and dust generated by cutting and chamfering can be prevented from entering a gap between the eccentric wheel 110 and the fixed seat 100, and the eccentric wheel 110 is abraded and even loosened due to friction with the flying chips in the using process.

As shown in fig. 1, fig. 3, fig. 4, and fig. 5, on the basis of the above embodiment, the cutting mechanism 400 further includes a limiting block 440, the limiting block 440 is sleeved on the main shaft 410, the limiting block 440 is connected with the main cutting blade 420 in an abutting manner, and is fixed on the main shaft 410 through the threaded connection between the main shaft 410 and the nut (not shown in the nut).

Preferably, the setting can guarantee the stability of main cutting knife 420 with the stopper 440 that main cutting knife 420 is contradicted to be connected, prevents that main cutting knife 420 from leading to the fact the injury to the staff owing to unexpected main shaft 410 that breaks away from even departure, alleviates main cutting knife 420's vibration range simultaneously to a certain extent, loss when reducing main cutting knife 420 and cutting the plastic tubing.

As shown in fig. 3, 4, and 5, in the above embodiment, the transmission mechanism 300 includes the first pulley 310, the second pulley 320, and the belt 330, the first pulley 310 and the second pulley 320 are coupled by the belt 330, the first pulley 310 is coupled to the driving device 200, and the second pulley 320 is coupled to the main shaft 410.

Preferably, when the driving device 200 works, the driving device drives the first belt wheel 310 to rotate, so as to drive the second belt wheel 320 linked and connected through the transmission belt 330 to rotate, the rotation of the second belt wheel 320 drives the main shaft 410 to rotate, when the main shaft 410 rotates, the whole cutting mechanism 400 starts to work, and at this time, the cutting machine can complete cutting and chamfering.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (6)

1. A plastic pipe cutting machine, characterized by comprising:

a fixing seat provided with an eccentric wheel for controlling the chamfering depth;

a drive device;

the transmission mechanism is in linkage connection with the driving device;

the cutting mechanism comprises a main shaft, a main cutting knife used for cutting the plastic pipe and a chamfering knife used for chamfering the plastic pipe, the main shaft is arranged on the fixed seat and is in linkage connection with the transmission mechanism, and the main cutting knife and the chamfering knife are all sleeved on the main shaft.

2. A plastic pipe cutting machine according to claim 1, wherein: the main cutter comprises a blade, and the blade is provided with a cutting inclined plane.

3. A plastic pipe cutting machine according to claim 2, wherein: the chamfering tool is formed with a chamfering bevel.

4. A plastic pipe cutting machine according to claim 3, wherein: the fixing seat is provided with a dustproof ring, and the dustproof ring seals a gap between the main shaft and the fixing seat.

5. A plastic pipe cutting machine according to claim 4, wherein: the cutting mechanism further comprises a limiting block, the main shaft is sleeved with the limiting block, and the limiting block is abutted and connected with the main cutting knife.

6. A plastic pipe cutting machine according to claim 1, wherein: the transmission mechanism comprises a first belt wheel, a second belt wheel and a transmission belt, the first belt wheel is in linkage connection with the second belt wheel through the transmission belt, the first belt wheel is connected with the driving device, and the second belt wheel is connected with the main shaft.

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